Electric signaling on railways.



G. H. BROWN, DECD.

K. M., n, & G. B. BROWN, nxBouTons AND TRUSTEES ELECTRIC SIGNALING 0N RAILWAYS.

APPLICATION FILED um. 20, 1907.

1,072,404. Patented Sept. 2, 1913.

UNITED STATES PATEN T OFFICE.

GEORGE HERBERT BROWN, OF BELFAST, IRELAND; KATHLEEN MARGARET BROWN, HERBERT BROWN, AND GEORGE BRAMATO BROWN EXECUTORS AND TRUSTEES OF SAID GEORGE HERBERT BROWN, DECEASED.

ELECTRIC SIGNALING ON RAILWAYS.

Specification of Letters Patent.

Application filed September 20, 1907.

Patented Sept. 2, 1913.

Serial No. 393,805.

To all whom it may concern:

Be it known that I, Gnonon Hnnnnn'r BROWN, a subject of the King of Great Britain, residing at 14 Dublin road, Belfast, Ireland, have invented certain new and useful Improvements in Electric Signaling on Railways, of which the following is a specification.

This invention relates to an improved electric block signaling system for railways. The system is so arranged that an incoming train automatically notifies or indicates its approach to the signal cabin controlling that section of the line on which it is and also (if the line is clear) notifies or indicates its approach to the signal cabin controlling the next section of the line ahead and further gives a signal to the signal cabin controlling the section of the line just left. Two rails or rods or the like are arranged parallel to one another in advance of each signal cabin and these rails or the like which are suitably insulated may be of any suitable length and are preferably laid between the ordinary rails. These special rails, which I will hereinafter refer to as signaling rails or ramp rails, are adapted to be charged with electricity from a source of electricitv 011 the train, preferably a dynamo on the engine, and by means of a contact brush or wheel which is normally pressed downward by one or more springs in the same manner as in Mackenzies Patent No. 866,945, September 24th, 1907, and wires are led from the signaling rails of each section to the signal cabin of that section and indicating (red and green) lamps and bells are arranged in the circuits in any suitable and well known manner. On each engine and also, prefe'ably, in the guards van of each train similar signaling bells, and (red and green) lamps are used and also if preferred a whistle in addition.

Each cabin is connected up with the signaling rails of the section ahead, and with the cabin behind, by means of properly insulated wires. The lever quadrants of the locking frame in each cabin, are provided with insulated contact studs, the levers are also provided with corresponding studs, and the contacts are so arranged that when an engine is on the signaling area and the lever is in the position to indicate danger,

a circuit is closed whereby a danger lamp is lighted in the signal cabin and also on the engine; and moreover should the lever be drawn forward in error to show clear while another engine is in the area ahead another circuit is closed which indicates danger both in the cabin behind and on the engine in that area.

The first circuit just mentioned is supplied with electricity from the locally situated train, while the electricity for the second circuit is supplied from the train in the signaling area ahead.

\Vith the present invention the advantage is obtained that should any defect or interruption in the signaling system arise while the train is in motion such defect is at once made apparent to the driver in his cab by means of a suitable arrangement of electric lamps showing a green, red or white light respectively with the necessary mechanism for lighting same. The arrangement is such that, as long as the lamp showing the white light remains lighted, the driver knows that his signaling system is in proper working order, but, immediately such light is extinguished and neither the red nor the green light referred to in the aforesaid specification, becomes visible, he knows that there is some defect or interruption and until such is remedied he must not proceed.

In order that my said invention may be properly understood I have hereunto appended explanatory drawings where0n:-

Figure 1 is a diagrammatic view of a section of a railway track showing two signal cabins an engine being indicated on one of the signaling areas of these cabins. Fig. 2 is an end view of the cab of an engine showing diagrammatically the various connections between the cab signals and the trol leys. Fig. 3 is an enlarged detail of the switch lever 1' provided in each signal cabin.

Along a section of the track at each signal cabin coiuhicting wires or rails c and c are laid which, as shown in Fig. 1, are placed beside the ordinary rails Z and are supported at intervals in any suitable manner. An insulated wire on is led from the conducting wire 0 and by a branch wire a to the switch contact 0 in the signal cabin 1, or 2 as the case may be, and a second insulated wire 79 is led from the signaling wire or rail 0 by branch wire 17. to the switch contact 0 By means of the switch 0 when the lever 1" is pulled into, position to indicate the line clea independent contact can be made through the contacts 0 and 0 and a circuit completed as hereinafter described through the wires n and 7?) thereby connecting the reenlamp 10 and the red or danger lamp 6 V i j v n 11, so that the srgnal'man can communicate with the train officials-by"nreansof a series of flashing signals.

In each signal cabinth-er-e is, preferably,

arranged agreen lamp 10-, a red lamp 11,

and a white lamp 12-, as shown in Fig 1.

Each lamp may have, in connection with it,; a call b'elsl suitably connected in C1'I"Cu1-t.= From the wire at where it 101118 the wire a lamp 11 and from the latter a wire s-leadsf to ca wire 7) which leads to the contact rail 1?; A branch wire a leads from the wire gi t the switch Contact stud 0 and 'a branch trim "o leads 'froi'n th'e'wire 77 to the contact st-u'd'o and there is also led from the branch wir e a branch'wire 0* which leads to the 1 c tact-stud A SWIiBClI lever 1 1s arranged as hereinafter explained to connect sti'ids o aud o and o 'and c.

As illustrated at Figs.- 1 and :2 besides the I distributing trolley 02 for charging. the contact rail cable or wire, there are two trolleys titted underneath the engine or tender frame (1 preferably consisting of the usual.

g-ro ed pulleys or wheels 7) and b which n-o-ri'nail ly contact with signaling rails, cables or trolleywires c and 0 (as shown in Fig. 1) being 'retatably secured in the lower ends of'ver-ti'ca-l standards (2' movably fitted in brackets a suitably secured at their upper ends to the engine or ten-der'frame a. Each cf-the brackets is" made with vertical slots through which project horizontal pins 6Z1 fitted in the standards (Z the arrangement suich-that the standards (Z and pins (Z are capable of an up-and-down movement in the brackets c. mindi-cates a dynamo (or other source of electricity) on the engine. From: the dyanmo 5c the wire 7 passes to the distributing trolley :0 while the wire 7 connects the dynamo 00 to earth by way of tlre"engiire framing, and the wire 7 from the dynamo 02 passes tothe wire 7 and so to'tl're contact piece" 7 with which the contact'pin'dcontacts when the left hand trolley bi (Fig.2) is in the down position as shown" in 2 I Fixedterminals f, f, are provided,- one for each trolley standardrl and preferably consisting of the strip or plate of sheet metal suitably bent to shape and fitted to the frame (1, these terminals f, being arranged near the top of the standards 0. A terminal 7 fixed to the engine frame is also arranged in connection with the left hand trolley standard (Z and is connected by a wire 9 to the'switch contact stud in the engine cab and from stud g a wire 9 is led through the white lamp 3 and bell to earth by way of the engine framing. This terminal f has-at its end an insulatedcontact 7 which is connected with the source of electricity by wires 7 and 7*.

From the left hand terminal f a wire 9 ,i's-ledthrough thegree-n lamp 1 and bell and to earth by way of the engine framing and from this wire 9 a branch wire 9 is led to the switch handle contact stud From the right hand terminal f a wire is led to the switch contact stud g and from thence a wire is led-through the red or danger lamp 2 and bell and whistle and to earth by way of the engineframin'g. At the right hand side of engine a rest f is provided for the pin (Z of the trolley 6 Clhis'rcst f is not electrically connected. When the trolleys drop downward after the train leaves the signaling area. the horizontal pin (Z on the left hand standard '65 bridges the terminal f and the insulated contact 7 atth-e end of this terminaland through the wire 9' completes an electric circuit as hereinafter described. to intimate to the driver 1 by means of' a white light 3- in the cab of the engine that all is in order. When the train enters the next signaling area and the trolleys are properly in contact with the signaling rails, cables, or trolley wiresc and 0 the horizontal pins (Z are raised or lifted in the slots 6 so that they come in contact 1 with the terminals 7, thereby giving an electrical connection through the wire g1 with the green light G in the cab ofthe engine and thereby indicating to the driver that he is in the signaling area.

To facilitate the Lip-and-down movement of the trolley standards cZ suitable springs may be fitted therein as indicated at cP.

The following is a description of the various circuits in the signaling system under this in cuits in the signaling system under this inventionz-VVhen the train ishetwe'en the signaling areas the trolley 7) falls so that contact stud (Z rests on terminal f and contact 7 and a circuit is thus completed betweenthe dynamo 0c and the white I a-mp3 in the engine cabin the following 1nanner:-Current passes from the dynamo w by wire 7", wire 7", contact piece 7; contact (Z terminal 7, wire 9, contact 9 wire 9 to white lamp 3 and then to the earth by the engine fram' ing to which the dynamo is earthed. This circuit, when completed, shows the driver that the apparatus is in working order and his dynamo w or other source of electricity supplying current.

When the train enters the signaling area of, say cabin 1 and is traveling in a direction from left to right of the diagram Fig. 1 then the distributing trolley a and the collecting trolleys b and b are raised by and make contact with the signaling rails c and the hereinbc'tore described circuit through the lamp 3 being thus broken by stud (Z being li't'ted away from contact piece 7 and terminal and when the stud (Z is so raised it makes contact with the upper terminal f and thereby another circuit is completed by current passing from the dynamo by wire 7, (see Fig. 2) du'etrilmting trolley :0 ramp or signaling rail 0, collecting trolley Z), bracket (.Z, contact stud (Z terminal 7, wire green lamp 1 in engine cab and to earth by engine itran'iework. At the same time a third circuit is completed :trom dynamo a) by current passing therefrom by wire 7 (see Fig. 2), distributing trolley :12", rail 0, wire m, wire w to green lamp 10 in cabin 1 and from thence by wire t to rail Z and then by way of the engine wheels and :trame to the earth. A fourth circuit is at the same time completed it'ron'l dynamo m by way of wire 7, distributing trolley :0 rail (1, wire wire w of signal cabin in the rear oil? cabin l (not shown as wiring and signals are same as in cabin 1) to lamp 12 in that cabin and earthed by wire 1 of that cabin and running rail Z to the earth through the wheels and frame of the engine. The first-mentioned circuit indicates to the driver that his apparatus is in working order. The sec-- ond shows the driver that his engine is on the signaling rails. The third shows the signalman in cabin 1 that the train is in his signaling area and the fourth indicates to the signalman in the cabin in the rear of cabin 1 that the train has cleared his section and entered the section under the control of cabin 1. When the train is on the ramp rails of cabin 1, as described, the driver by means of the switch may make contact with stud y" and. thereby cause current to pass from dynamo a: by wire 7, distributing trolley re, ramp rail 6, collecting trolley b, stud left hand terminal 1, wire 9 wire switch 9", contact stud g, wire right hand terminal f, trolley Z2 ramp rail (2",Wi1'0 y) to lamp 11 wire wire t to running rail Z and through wheels of engine to earth. 3y making and breaking this circuit by means of the switch f the driver can give a code 0t signals by lamp 11 in cabin 1; when he does so he at the same time closes or completes another circuit from dynamo or, by wire 7, trolley :0 rail (1, collecting trolley 71, stud tZ, left hand terminal f, wire 9 wire 9 switch 9 stud 9*, wire right hand terl'ninal 7', right hand stud (Z trolley 6 ramp rail 0 wire 72, wire o, wire a, contact stud o, lever handle 7', stud n, wire o and wire 9 to ramp rail (3 of cabin 2 and by wires 1n and '10 in that cabin to green lamp 10 of cabin 2 ahead the circuit being carthed by way of wire t ot' cabin 2 and the running rails Z and then by the wheels and frame of the engine to the earth. The signahnan ot' a signal cabin can reply to the driver of a train on the ramp rails of his section by means of his switch 0 by making and breaking contact between switch 0 and stud 0 in his cabin. This completes a circuit as follows :From dyname a: by wire 7, trolley m to contact rail 0, wire m, wire a, stud 0 switch 0, stud 0 wire 7), ramp rail 0, collecting trolley b stud (Z, terminal j, wire (1 to red lamp 2 in cab of engine and to earth by engine framework.

When the line ahead is not clear the signalman can block or stop a train entering his signaling area by placing the switch 0 into contact with the contact stud or piece 0'- and leaving it there until the obstruction is removed and the line cleared. \Vhcn the switch 0 is on the contact piece 0 a circuit is completed as follows from the dynamo a' :-'lrcm dynamo a: by wire 7, trolley :0 rail 0, wire at, wire '11,, stud 0, switch 0, stud 0 wire 1), ramp rail c, collecting trolley Z), stud (Z right terminal f, wire to red or danger lamp 2 in engine cab and to earth by way of engine ilramework. The lighting of lamp 2 indicates to the engine driver that the line ahead is blocked and that he must remain in the signaling area in which he receives the signal. At the same time current from the dynamo :4: passes by wire 7, trolley w, rail 0, wire at, wire 0:, stud 0 switch 0, stud 0 wire 7), wire s, to red lamp l1 in the signal cabin and then to earth by wire a", wire 2, rail 7 and framework of engine. This circuit confirms to the signal man that he has signaled to the train to stop. The Signalman can also stop or block a train entering his section by pulling the signal lever 7' over so as to connect the stud contacts 11 and '0 This con'ipletes a circuit from dynamo a: as follows :-current from dynamo :1: passes by wire 7, trolley m rail 0, wire m, wire '0, stud o lever r, stud '0", wire o,wire p, ramp rail J", collecting trolley Z)", stud (Z right terminal f, wire g to red or danger lamp 2 in engine cab and to earth by *ay of engine ilramework. The lighting of lamp 2 indicates to the engine driver that the line ahead is blocked and that he must remain in the signaling area in which he receives the signal. At the same time current passes from dynamo a: by wire 7 trolley a, rail. 0, wire or, wire a. stud v, lever '1'. stud. o, wire 4), wire p, wire .9 to red lamp 11 in the signal cabin and then to earth by wire 8 wire t, rail Z and framework of engine. This circuit confirms to the signalman that he has signaled to the train to stop.

If a train or engine is standing or mov ing on the part of the line under the control of cabin 2 and a train enters the signaling section controlled by cabin 1 and the signalman in cabin 1 either by mistake or otherwise gives the clear signal to the incoming train by pulling his lever 1 into contact with the stud contacts and a then, on the train entering his section, a circuit will be immediately completed whereby the red or danger lamp 2 in the engine cab will be lighted thereby warning the driver of the fact that in spite of his signals he is not to proceed. This circuit which is from the dynamo a; of the engine on the section con-' trolled by cabin 2 is as follows z-trom dynamo w by wire 7, trolley m rail 0 of cabin 2, connecting wire g, between cabin 2 and cabin 1, wire '0 at cabin 1, contact stud o lever 1 contact stud 1;, wire '0, wire a wire 7) to rail 0 trolley 2 of theengine at cabin 1 and from thence by right terminal f, wire to red lamp 2 and to earth by way of the engine framework. At the same time another circuit is completed trom the dynamo m of the engine at cabin 2 through the danger lamp 11 in cabin 1 in the following manner: from dynamo m by wire 7 trolley m ramp rail 0, wire 9 from cabin 2 to cabin 1, wire c, at cabin 1, contact stud o lever 7', contact stud 1), wire '0 wire o wire 2), wire .9 to red or danger lamp 11 then by wire 8 and wire 6 to rail Z and from thence by the wheels and frame of the engine to earth. This circuit indicates to the signalman of cabin 1 that he has made a mistake in giving the clear signal to the train entering his section.

Having now fully described my invention what I claim and desire to secure by Letters Patent is 1. The combination, in an electrical sig naling systemvsuch as described, of a ramp rail on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the engine, a second trolley adapted to engage the ramp rail, a contact on the engine in circuit with said lamp, a second contact on the engine connected with the source of electricity, a contact on the said second trolley adapted to bridge said engine contacts, an electric lamp in the signal cabin, electrical connections from the said lamp in the signal cabin to the ramp rail, means in connection with the said second trolley whereby when the trolley ceases engaging the ramp rail its contact is caused to bridge the aforesaid engine contacts and connect the lamp on the engine with the source of electricity in order to light the same, a second electric lamp on the engine and means whereby when the said second trolley engages the ramp rail the second lamp on the engine is connected with the second trolley whereby a connection is made from the source of electricity through the trolleys and ramp rail to the second lamp. 7

2. The combination, in an electrical signaling'system such as described, of a ramp rail on the track,a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the engine, a second trolley adapted to engage the ramp rail, a contact on the engine in circuit with said lamp, a second contact on the engine connected with the source of electricity, a contact on the said second trolley adapted to bridge said engine contacts, an electric lamp in the signal cabin, electrical connections from the said lamp in the signal cabin to the ramp rail, means in connection with the said second trolley whereby when the trolley ceases engaging the ramp rail its contact is caused to bridge the aforesaid engine contacts and connect the lamp on the engine with the source of electricity in order to light the same, a second electric lamp on the engine, a third contact on the 7 engine in circuit with said second lamp on engine, and a second contact on the said seeone trolley adapted to contact with said third contact on the engine when the said second trolley engages the ramp rail.

The combination, in an electrical sig naling system such as described, of a ramp rail onthe track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the en ine, a second spring-depressed trolley adapted to engage the ramp rail, a contact on the engine in circuit with said lamp, a second contact on the engine connected with the source of electricity, a contact on the said second trolley adapted to bridge said engine contacts, when the trolley ceases engaging the ramp rail, to connect the lamp on the engine with the source of electricity in order to light the same, an electric lamp in the signal cabin, electrical connections from the said lamp in the signal cabinto the ramp rail, a second electric lamp on the engine and means whereby when the said second trolley engages the ramp rail the second lamp on the engine is connected with the second trolley whereby a connection is made from I the source of electricity through the trolleys and ramp rail to the second lamp.

4. The combination, in an electrical signaling system such as described, of a ramp rail on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the engine, a second trolley adapted to engage the ramp rail, a terminal contact on the engine in circuit with said lamp, a second contact on the engine connected with the source of electricity, a contact on the said second trolley adapted to bridge said engine contacts, an electric lamp in the signal cabin, electrical connections from the said lamp in the signal cabin to the ramp rail, means in connection with the said second trolley whereby when the trolley ceases engaging the ramp rail its contact is caused to bridge the aforesaid engine contacts and connect the lamp on the engine with the source of electricity in order to light the same, a second electric lamp on the engine, a third terminal contact on the engine in circuit with said second lamp on engine, and a second contact on the said second trolley adapted to contact with said third terminal contact on engine when the second trolley engages the ramp rail.

The combination, in an electrical signaling system such as described, of a ramp rail on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the engine, a second trolley adapted to engage the ramp rail, a terminal on the engine in circuit with said lamp, an insulated contact in circuit with the source of electricity on the engine, a contact on the said second trolley adapted to bridge said terminal and contact, an electrical lamp in the signal cabin, electrical connections from the said lamp in the signal cabin to the ramp rail, and means causing the contact on said second trolley to contact with the engine terminal and contact so long as said second trolley is oil the ramp rail thereby maintaining an electrical connection between the source of electricity and the lamp on the engine and keeping said lamp lighted.

6. The combination, in an electrical signaling system such as described, of a ramp rail on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the engine, a second trolley adapted to engage the ramp rail, a terminal on the engine in circuit with said lamp, a contact in circuit with the source of electricity on the engine, a contact on the said second trolley adapted to bridge said terminal and contact, an electrical lamp in the signal cabin, electrical connections from the said lamp in the signal cabin to the ramp rail, means causing the contact on said second trolley to bridge the engine terminal and contact so long as said second trolley is oil the ramp rail thereby maintaining an electrical connection between the source of electricity and the lamp on the engine thus keeping said lamp lighted, a second electric lamp on the engine, a second contact on the engine in circuit with said second lamp and a second contact on the second trolley adapted to contact with said second contact on the engine and thus connect the source of electricity through the trolleys and ramp rail, with the second lamp when the said second trolley engages said ramp rail.

7. The combination, in an electrical signaling system such as described, of a ramp rail on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the engine, a second trolley adapted to engage the ramp rail, a terminal on the engine in circuit with said lamp, an insulated contact in circuit with the source of electricity, a contact on the said second trolley adapted to bridge said terminal and the insulated contact and means for maintaining the contact of the second trolley in electrical contact with the said terminal and contact when the second trolley is out of engagement with the ramp rail.

8. The combination, in an electrical signaling system such as described, of a ramp rail on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the engine, a second trolley adapted to engage the ramp rail, a terminal on the engine in circuit with said lamp, an insulated ctmtact in circuit with the source of electricity, a second lamp on the engine, a second terminal on the engine in circuit with said second lamp, and two contacts on the second trolley the one contact adapted to bridge the first terminal on the engine and the insulated contact when the second trolley is oil the ramp rail and the other contact adapted to connect the amp rail and the second terminal on the engine when the second trolley is on the ramp rail.

9. The combination, in an electrical signaling system such as described, of a ramp rail on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the engine, a second trolley adapted to engage the ramp rail, a long terminal on the engine in circuit with said lamp, an insulated contact in circuit with the source of electricity, a second lamp on the engine, a second short terminal on the engine in cireuit with said second lamp, and two contacts on the econd trolley the one contact adapted tobridge the long terminal on the engine and the insulated contact when the second trolley is oh the ramp rail and the other contact adapted to connect the ramp rail with the short terminal on the engine when the second trolley is on the ramp rail.

10. The combination, in an electrical signaling system such as described, of two ramp rails on the track, means whereby the two circuit with said lamp, a second contact on the engine connected with the source of electricity, acontact on the second trolley adapted to bridge said engine contacts, a second electric lamp on the'engine, a third contact on the engine in, circuit with the second electrio lamp, a contact on the second trolley adapted to contact with the third contact on the engine, a third electric lamp on the engine, afourth contact on the engine in circuit with said third lamp, a third trolley on'the engine adapted to engage a different ramp rail from the other trolleys and a contact on the third trolley adapted to contact with the fourth contact on the engine.

1 1. Thecombination, in an electrical signaling system such as described, of two ramp rails on the track, means whereby the two ramp rails may be electrically connected, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage one of the said ramp rails, an electric signaling device on the engine, a second trolley adapted to engage the same ramp rail, a contact on the engine in circuit withsaid electric signaling device, a second contact on the engine connected with the source of electricity, a contact on the second trolley adapted to bridge said engine contacts, a second electric signaling device on the engine, a third contact on the engine in circuit with the second'electric signaling device, a contact on the second trolley adapted to contact with the third contact on the engine, a third electric signaling device on the engine, a fourth contact on the engine in circuit with said third signaling device, a third trolley on the engine adapted to engage a different ramp rail from the other trolleys and a contact on the third trolley adapted to contact with the fourth contact on the engine.

12. The combination, in an electrical signaling system such as described, of'two ramp rails on the track, means whereby the two ramp rails may be electrically connected, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage one of the said ramp rails, an electric lamp on the engine, a second trolley adapted to engage the same ramp rail, a contact on the engine in circuit with said lamp, a second contact on the engine connected with the source of electricity, a contact on the second trolley adapted to bridge said engine contacts, an electric lamp in the signal cabin, electric connec-- ticns from the said lamp in the signal cabin to a ramp rail, a second electric lamp on the engine, a third contact on the engine'in circuit with the second electric lamp, a contact on the second trolley adapted to contact with the third Contact on the engine, a third electric lamp on the engine, a fourth contact on the engine in circuit with said third lamp, a third trolley on the engine adapted to engage a different ramp rail from the other trolleys and a contact on the third trolley adapted to contact with the fourth contact on the engine.

13. The combination, in an electrical signaling system such as described, of two ramp rails on the track, means whereby the two ramp rails may be electrically connected, a source of electricity on the engine, a trolley onthe engine in circuit with said source of electricity and adapted to engage one of the said ramp rails, an electric lamp on the engine, a second trolley adapted to engage the same ramp rail, a contact on the engine in circuit with said lamp, a second contact on the engine connected with the source of electricity, a contact on the second trolley adapted to bridge said engine contacts, an electric lamp in the signal cabin, electric connections from the said lamp in the signal cabin to the same ramp rail, a second electric lamp in the signal cabin, electric connections from said second lamp in the cabin to the second ramp rail, a second electric lamp on the engine, a third contact on the engine in circuit with the second electric lamp, a contact on the second trolley adapted to contact with the third contact on the engine, a third electric lamp on the engine,

a fourth contact on the engine in circuit with said third lamp, means whereby said third and fourth contacts on the engine may be connected and disconnected, a third trolley on the engine adapted to engage the second ramp rail and a contact on the third trolley adapted to contact with the fourth contact on the engine. 7

14:. The combination, in an electrical signaling system such as described, of two ramp rails on the track, means whereby the two ramp rails may be electrically connected, a source of electricity on the engine, a trolley on the engine in-circuit with said source of electricity and adapted to engage one of the said ramp rails, an electric lamp on the engine, a second trolley adapted to engage the same ramp rail, a contact on the engine in circuit with said lamp, a sec ond contact on the engine connected with the source of electricity, acont-act on the second trolley adapted to bridge said engine contacts, an electric lamp in the signal cabin, electric connections from the said lamp in the signal cabin to the same ramp rail, a second electrical lamp in the signal cabin, electric connections from said second lamp in the cabin to the second ramp rail, a third electric lamp in the signal cabin, means whereby said third lamp in the cabin may be electrically connected with the second ramp rail, a second electric lamp on the engine, a third contact on the engine in circuit with the second electric lamp, a contact on the second trolley adapted to contact with the third contact on the engine, a third electric lamp on the engine, a fourth contact on the engine in circuit with said third lamp, means whereby said third and fourth contacts on the engine may be connected and disconnected, a third trolley on the engine adapted to engage the second ramp rail and a contact on the third trolley adapted to contact with the fourth contact on the engine.

15. The combination, in an electrical signaling system such as described, of two ramp rails on the track, means whereby the two ramp rails may be electrically connected, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage one of the said ramp rails, an electric lamp on the engine, a second trolley adapted to engage the same ramp rail, a contact on the engine in circuit with said lamp, a second contact on the engine connected with the source of electricity, a contact on the second trolley adapted to bridge said engine contacts, an electric lamp in the signal cabin, electric connections from the said lamp in the signal cabin to the same ramp rail, a second electric lamp in the signal cabin, electric connections from said second lamp in the cabin to the second ramp rail, a third electric lamp in the signal cabin, means whereby said third lamp in the cabin may be electrically connected with the second ramp rail, a ramp rail in the next signaling area ahead, electrical connections from the said third lamp in the cabin to said ramp rail of the net signaling area ahead, a second electric lamp on the engine, a third contact on the engine in circuit with the second electric lamp, a contact on the second trolley adapted to contact with the third contact on the engine, a third electric lamp on the engine, a fourth contact on the engine in circuit with said third lamp, means whereby said third and fourth contacts on the engine may be connected and disconnected, a third trolley on the engine adapted to engage the second ramp rail and a contact on the third trolley adapted to contact with the fourth contact on the engine.

16. The combination, in an electrical signaling system such as described, of two ramp rails on the track, means whereby the two ramp rails may be electrically connected, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage one of the said ramp rails, an electric lamp on the engine, a second trolley adapted to engage the same ramp rail, a contact on the engine in circuit with said lamp, a second contact on the engine connected with the source of electricity, a contact on the second trolley adapted to bridge said engine contacts, an electric lamp in the signal cabin, electric connections from the said lamp in the signal cabin to the same ramp rail, a second electric lamp in the signal cabin, electric connections from said second lamp in the cabin to the second ramp rail, :1 third electric lamp in the signal cabin, means whereby said third lamp in the cabin may be electrically connected with the second ramp rail, a ramp rail in the next signaling area ahead, electric connections from said third lamp in the cabin to said ramp rail of the next signaling area ahead, a second electric lamp on the engine, a third contact on the engine in circuit with the second electric lamp, a contact on the second trolley adapted to contact with the third contact on the engine, a third electric lamp on the engine, a fourth contact on the engine in circuit with said third lamp, means whereby said third and fourth contacts on the engine may be connected and disconnected, a third trolley on the engine adapted to engage said second ramp rail and a contact on the third trolley adapted to contact with the fourth contact on the engine.

17. The (7(lllllJllltltlUll, in an electrical signaling system such as described, of a ramp rail on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric signaling device on the engine, a second trolley adapted to engage the ramp rail, a contact on the engine in circuit with said electric signaling device, a second contact on the engine connected with the source of electricity, a contact on the said second trolley adapted to bridge said engine contacts, an electric signaling device in the signal cabin, electrical connections from the said electric signaling device in the signal cabin to the ramp rail, means in connection with the said second trolley whereby when the trolley ceases engaging the ramp rail its contact is mused to bridge the aforesaid engine contacts and connect the electric signaling device on the engine with the source of elec' tricity and cooperate the same, a second electric signaling device on the engine and means whereby when the said second trolley engages the ramp rail the second electric signaling device 011 the engine is op erated.

18. The combination, in an electrical signaling system such as described, of a ramp rail on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric signaling device on the engine,'a second trolley adapted to engage the ramp rail, a contact on the engine in circuit with said electric signaling device, a second contact on the engine connected with the source of electricity, a contact on the said second trolley adapted to bridge said engine contacts, an electric signaling device in the signal cabin, electrical connections from the said signal ing device in the signal cabin to the ramp rail, means in connection with the said second trolley whereby when the trolley ceases engaging the ram-p rail its contact is caused to bridge the aforesaid engine contacts and connect the electric signaling device on the engine with the source of electricity and so operate the same, a second electric signaling device on the engine, a third contact on the engine in circuit with said second electric signaling device on the engine, and a second contact on the said second trolley adapted to contact with said third contact on the engine when the second trolley engages the ramp rail.

19. The combination, in an electrical signaling system such as described, or" two ramp rails on the track, a source of electricity on the engine, a trolley on the engine in circuit with said source of electricity and adapted to engage one of the said ramp "ails, an electric signaling device on the engine, a second trolley adapted to engage the same ramp rail, a contact on the engine in circuitwith said signaling device, a second contact on the engine connected with the source of electricity, a contact on the second'trolley adapted to bridge said engine contact, an electric signaling device in the signal cabin, electric connections from the said signaling device in the signal cabin to the same ramp rail, a second. electric signaling device in the signal cabin, electric connections from said second signaling device in the cabin to the second ramp rail, a third electric signaling device in the signal cabin, a third ramp rail in the next section of the track ahead, a signaling: device in the next cabin ahead, electric connections from said third ramp rail to the signaling device of the next cabin ahead, means whereby the second ramp rail may be electrically connected with the third ramp'rail, and a signaling device in the next cabin in rear, an electric connection from the first ramp rail to said signaling device in next cabin in rear, a second electric signaling device on the engine, a third contact 011 the engine in circuit with the second electric signaling device, a contact on the second trolley adapted to contact with the third contact on the engine, a third electric signaling device on the engine, a fourth contact on the engine in circuit with said third signalingv device, "leans whereby said third and fourth contacts on the engine may be connected and disconnected, a third trolley on the engine tric lamp on the engine, a second trolley adapted to engage the ramp rail, a contact on the engine in circuit with said lamp, a

second contact on the engine connectedwith the source of electricity, a contact on the said second trolley adapted to bridge said engine contacts, an electric lamp inthe signal cabin, electrical connections from the said lamp in the signal cabin to theramp rail, means in connection, with the said second trolley whereby when the trolley ceases engaging the ramp rail its contact is caused to bridge the aforesaid engine contacts and connect the lamp on the engine with the source of electricity and so light the same, a second electric lamp on the engine, means whereby when the said trolley engages the ramp rail the second lamp on the engine is lighted, a third lamp on the engine, a second lamp in the signal cabin and means whereby the third lamp on the engine and the second lamp in the cabin can be flashed in and out.

21. The combination, in an electrical signaling system such as described, of a ramp rail on the track, a source of electricity on the en ine, a trolley on the engine in circuit with said source of electricity and adapted to engage said ramp rail, an electric lamp on the engine, a second trolley adapted to engage the ramp rail, a contact on the engine in circuit wlth said lamp, a

second contact on the engine connected with the source of electricity, a contact on the said second trolley adapted to bridge 'said engine contacts an electric lamp in the signal cabin, electrical connections from the said lamp in the signal cabin to the ramp rail, means in connection with the said second trolley whereby when the trolley ceases .engaging the ramp rail its contact is caused to bridge the aforesaid engine contacts and close the circuit through the lamp on the the lamp in the cabin ahead can be flashed 10 engine and light the same, a second electric in and out.

lamp on the engine, means whereby when In testimony whereof I afiix my signature the said trolley engages the rafinpd rail1 the in presence of two Witnesses.

second lamp on the engine is lig te a t lird a lamp on the engine a second lamp in the GEORGE HERBERT BROWN signal cabin, a lamp in the next cabin ahead Witnesses:

and means whereby the third lamp on the JOSEPH MGGUINNESS,

engine, the second lamp in the cabin and EDWARD HARVEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington. D. G. 

